Graphene coating repairing device and method

Abstract

The invention provides a graphene coating repairing device and method, and relates to the technical field of coating repairing devices.The graphene coating repairing device comprises a base, a supporting column is fixedly mounted on the surface of the base, a machine tool plate is fixedly mounted at one end of the supporting column, and a dustproof shell cover is fixedly mounted on the surface of the machine tool plate; a first motor is fixedly mounted on the surface of the dustproof shell cover, the grinding disc and aluminum oxide abrasive paper are arranged, the aluminum oxide abrasive paper can effectively remove small particles on the surface of a coating, the surface of the coating is efficiently ground, impurities and defects are removed, and the adhesive force of the coating is improved; and a high-pressure spray head, a dust suction pipe, a dust suction pump, a dust exhaust pipe, a mounting box, a first fan and a waste box are arranged, so that dust and coating waste which are ground from the surface of a machined part can be collected while the grinding disc is cooled, the environmental pollution is effectively reduced, the cleanliness of the working environment is improved, and the health of operators is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of coating repair devices, and in particular to a graphene coating repair device. Background Art

[0002] In recent years, automation technology has continued to mature and has been widely used in all aspects of industrial production, which has also brought opportunities for the development of coating repair devices. By introducing an automated control system, the parameters of each operating link of the repair device, such as grinding, spraying, and drying, can be accurately controlled, such as the speed and depth of grinding, the flow rate and angle of spraying, the temperature and time of drying, etc. Announcement No. CN114210484A discloses a graphene capillary graphene coating repair device, which relates to the field of graphene. The present invention relates to a graphene field, and in particular to a graphene capillary graphene coating repair device. Technical problem: During the spraying process of the graphene capillary graphene coating, the fixture is easy to damage the capillary, and the firmness of the graphene coating of the capillary cannot be detected. The technical solution is as follows: A graphene capillary graphene coating repair device includes a working machine bottom plate, a supporting connecting column, a first gathering and dispersing fixing system, a second gathering and dispersing fixing system, and a coating spraying mechanism; four supporting connecting columns are fixed to the top of the working machine bottom plate. The present invention achieves the effect of spraying coating to repair the capillary with damaged surface graphene coating, and repeatedly dispersing and gathering, so that the damaged area on the capillary surface can be completely covered and repaired by the graphene coating, and the capillary is dried and the excess coating on its surface is wiped off, and the coating firmness test is performed on the capillary surface with dried surface coating. Although the present invention can detect the damaged area after repair, the original coating may have some slight wear and scratches on the surface after use. It is difficult to cover the new graphene coating as smooth as the original coating during repair, and local protrusions or depressions may appear. The repair marks can be detected visually and tactilely, and improvement is needed. Summary of the invention

[0003] The purpose of the present invention is to solve the technical problems raised in the above background technology.

[0004] The present invention adopts the following technical scheme: a graphene coating repairing device and method, comprising a base, a support column is fixedly installed on the surface of the base, one end of the support column is fixedly installed on a machine tool plate, a dust cover is fixedly installed on the surface of the machine tool plate, a first motor is fixedly installed on the surface of the dust cover, a grinding disc is fixedly installed on the output end of the first motor, alumina sandpaper is fixedly installed on the surface of the grinding disc, an air pump is fixedly installed on the surface of the machine tool plate, the output end of the air pump is fixedly connected to a hollow plate through an air supply pipe, a high-pressure nozzle is fixedly installed on the surface of the hollow plate, a dust suction pump is fixedly installed on the surface of the machine tool plate, a dust suction pipe and a dust exhaust pipe are fixedly installed on the input and output ends of the dust suction pump respectively, an installation box is placed on the surface of the base, a first fan is fixedly installed inside the installation box, and a waste box is slidably connected to the inside of the installation box.

[0005] Preferably, the dustproof shell is provided with a grinding area, a coating area and a drying area. A sliding rod is fixedly installed on the surface of the coating area. A coating spraying mechanism is slidably connected to the surface of the sliding rod. A paint spraying tube is fixedly installed on the surface of the coating spraying mechanism. A soft door curtain is fixedly installed on the surface of the dustproof shell. A vertical plate is fixedly installed on the surface of the machine tool plate. A second motor is fixedly installed on the surface of the vertical plate. A threaded rod is fixedly installed on the output end of the second motor. A movable frame is threadedly connected to the surface of the threaded rod. A fixed plate is fixedly installed on the surface of the movable frame. A threaded column is threadedly connected to the internal thread of the fixed plate. A knob is fixedly installed on one end of the threaded column. A limit rod is slidably connected to the internal of the fixed plate. A clamping plate is fixedly installed on one end of the limit rod. A workpiece is placed on the surface of the movable frame. Here, the workpiece is clamped by the knob, and the second motor is started so that the threaded rod drives the workpiece on the movable frame to enter the dustproof shell for grinding, coating and drying processes, ensuring that the coating is uniform and smooth and eliminating repair marks.

[0006] Preferably, the hollow plate is fixedly installed between the grinding area, and the dust exhaust pipe is fixedly installed between the installation box. Here, the high-pressure nozzle on the hollow plate can prevent the dust and waste generated by the grinding disc during grinding from remaining on the workpiece, and can also effectively cool the grinding disc, and the dust suction pump can ensure that the surface of the workpiece is clean.

[0007] Preferably, the movable frame is slidably connected to the dustproof shell. Here, the movable frame is slidably connected inside the dustproof shell, so that the movable frame can be flexibly adjusted to ensure that the workpiece is accurately positioned in each process of grinding, coating and drying, thereby improving the repair efficiency.

[0008] Preferably, a second fan is fixedly installed inside the installation box, a dust outlet is opened on the surface of the installation box, a support plate is fixedly installed on the surface of the installation box, and a water tank is placed on the surface of the support plate. Here, dust and waste are sucked into the installation box through the dust exhaust pipe. The surface area of ​​the coating waste is larger than that of dust particles due to its flake shape, so the first fan below will blow the dust to the top of the installation box and then be blown into the water tank below the dust outlet by the second fan. The principle that water has strong adsorption capacity for dust can effectively prevent secondary pollution. At the same time, the water tank is easy to clean, and the flake coating waste is not easily blown by the second fan but will fall into the waste box at the bottom of the installation box under the influence of gravity.

[0009] Preferably, the air outlet of the second fan is aligned with the dust outlet, and the water tank is made of environmentally friendly polyester. Here, the second fan and the dust outlet work together to efficiently discharge dust, and the environmentally friendly polyester water tank is relatively light and convenient for subsequent staff to replace the water inside it.

[0010] Preferably, the surface of the drying area is provided with a vent, an exhaust fan is fixedly mounted on the surface of the vent, a mounting frame is fixedly mounted on the surface of the dust cover, a third motor and a hot air pump are fixedly mounted on the surface of the mounting frame, a driving wheel is fixedly mounted on the output end of the third motor, an air duct is fixedly mounted on the output end of the hot air pump, a rotating ring is fixedly mounted inside the mounting frame, an air duct is fixedly mounted inside the rotating ring, a ring gear is fixedly mounted on the surface of the air duct, a shunt pipe is connected to the surface of the air duct, and a venting joint is fixedly mounted on the surface of the shunt pipe. Here, the venting joint will evenly distribute the hot air on the workpiece under the rotation of the air duct, ensuring a uniform drying effect, avoiding local overheating or undrying, and improving the overall quality and durability of the workpiece.

[0011] Preferably, the air duct is fixedly mounted on the mounting frame, and the mounting frame is rotatably connected to the air duct. Here, the air duct is connected to the mounting frame via a rotating ring, which ensures that the air duct remains stable during rotation, avoids displacement of the air duct due to vibration, and ensures uniform distribution of hot air.

[0012] Preferably, the ring gear is meshed with the driving wheel. Here, the meshing transmission has good stability, so that the driving wheel drives the ring gear to rotate, ensuring that the air duct rotates smoothly.

[0013] A method for repairing a graphene coating device comprises the following steps:

[0014] S1: First, place the workpiece on the surface of the mobile rack, then turn the knob to move the threaded column forward so that the clamping plate can clamp the workpiece. The limit rod fixed on the surface of the clamping plate can make the clamping plate and the workpiece fit tightly to ensure that they will not loosen during the processing. Then start the second motor to rotate the threaded rod to drive the mobile rack to move to the grinding area.

[0015] S2: The aluminum oxide sandpaper installed on the grinding disc can effectively grind the surface of the workpiece to remove coating waste and impurities and improve the adhesion of the coating. While grinding, the high-pressure nozzle sprays gas to blow away the dust generated during grinding and cool the grinding disc to ensure that the surface is clean and free of residue. The dust and coating waste will be sucked into the installation box by the dust suction pipe. Because the coating waste is in sheet form and is not easily blown by the second fan, the coating waste will fall into the waste box at the bottom of the installation box due to the influence of gravity.

[0016] S3: Since the dust particles are small, they will be blown to the upper part of the installation box by the wind force generated by the second fan. Then, the wind force of the first fan will blow the dust into the water tank below the dust outlet. The water in the water tank can effectively absorb the dust to prevent secondary pollution.

[0017] S4: Finally, the threaded pipe will drive the mobile frame to the drying area for drying. The hot air pump in the drying area will start to transport the hot air to the air duct through the air duct. The venting joint installed on the diversion pipe connected to the bottom of the air duct will spray the hot air evenly on the surface of the workpiece to ensure that every corner can be fully dried. At the same time, the third motor will be started to drive the ring gear to rotate the air duct through the driving wheel, further optimizing the hot air distribution, improving the drying efficiency, ensuring the uniform curing of the coating, and preventing the coating from cracking or falling off due to uneven drying.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are:

[0019] 1. In the present invention, by setting a grinding disc and aluminum oxide sandpaper, the material of the aluminum oxide sandpaper can effectively remove tiny particles on the coating surface, efficiently grind the coating surface, remove impurities and defects, and improve the adhesion of the coating. The high-pressure nozzle, dust suction pipe, dust suction pump, dust exhaust pipe, installation box, first fan, and waste box are set, which can cool the grinding disc while collecting the dust polished on the surface of the workpiece and the coating waste, effectively reducing environmental pollution, improving the cleanliness of the working environment, and ensuring the health of operators.

[0020] 2. In the present invention, by setting up a second fan, a dust exhaust port, a support plate, and a water tank, the principle that dust particles are small and easy to be blown is utilized to efficiently discharge tiny dust from the water tank, thereby reducing dust accumulation inside the installation box.

[0021] 3. In the present invention, by arranging an air duct, a hot air pump, an air guide pipe, a shunt pipe, an air vent joint, a ring gear, a third motor, and a driving wheel, the generated hot air can be discharged from the air vent joint to the surface of the workpiece through the rotation of the shunt pipe, ensuring uniform coverage of the hot air, avoiding local overheating or undrying, and improving the quality and efficiency of coating repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention proposes a graphene coating repair device and method;

[0023] Figure 2 A rear view of a graphene coating repairing device and method proposed by the present invention;

[0024] Figure 3 A schematic cross-sectional view of a dust cover portion of a graphene coating repair device and method provided by the present invention;

[0025] Figure 4 A schematic cross-sectional view of a mounting frame of a graphene coating repair device and method provided by the present invention;

[0026] Figure 5 A schematic diagram of a mobile frame connection structure of a graphene coating repair device and method proposed in the present invention;

[0027] Figure 6 The present invention provides a schematic diagram of the connection structure of an installation box of a graphene coating repair device and method.

[0028] Legend:

[0029] 1. Base; 2. Support column; 3. Machine plate; 4. Dust cover; 5. First motor; 6. Grinding disc; 7. Alumina sandpaper; 8. Air pump; 9. Air supply pipe; 10. Hollow plate; 11. High-pressure nozzle; 12. Dust pump; 13. Dust pipe; 14. Dust exhaust pipe; 15. Installation box; 16. First fan; 17. Waste box; 18. Grinding area; 19. Coating area; 20. Drying area; 21. Slide bar; 22. Coating spraying mechanism; 23. Paint spraying pipe; 24. Soft door curtain; 25. Vertical board; 26 , the second motor; 27, threaded rod; 28, movable frame; 29, fixed plate; 30, threaded column; 31, knob; 32, limit rod; 33, clamping plate; 34, processed part; 35, second fan; 36, dust outlet; 37, support plate; 38, water tank; 39, vent; 40, exhaust fan; 41, mounting frame; 42, third motor; 43, hot air pump; 44, driving wheel; 45, air duct; 46, rotating ring; 47, air guide duct; 48, ring gear; 49, shunt pipe; 50, vent joint. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0032] Embodiment 1

[0033] See also Figure 1-3 , Figure 5-6The present invention provides a technical solution: a graphene coating repair device, comprising a base 1, a support column 2 is fixedly installed on the surface of the base 1, a machine plate 3 is fixedly installed on one end of the support column 2, a dust cover 4 is fixedly installed on the surface of the machine plate 3, a first motor 5 is fixedly installed on the surface of the dust cover 4, a grinding disc 6 is fixedly installed on the output end of the first motor 5, an aluminum oxide sandpaper 7 is fixedly installed on the surface of the grinding disc 6, an air pump 8 is fixedly installed on the surface of the machine plate 3, an output end of the air pump 8 is fixedly connected to a hollow plate 10 through an air supply pipe 9, a high-pressure nozzle 11 is fixedly installed on the surface of the hollow plate 10, a dust suction pump 12 is fixedly installed on the surface of the machine plate 3, and a dust suction pump 12 is fixedly installed on the surface of the machine plate 3. The input end and the output end of 12 are respectively fixedly installed with a dust suction pipe 13 and a dust exhaust pipe 14, a mounting box 15 is placed on the surface of the base 1, a first fan 16 is fixedly installed inside the mounting box 15, a waste box 17 is slidably connected inside the mounting box 15, a grinding area 18, a coating area 19 and a drying area 20 are opened inside the dust cover 4, a sliding rod 21 is fixedly installed on the surface of the coating area 19, a coating spraying mechanism 22 is slidably connected on the surface of the sliding rod 21, a coating spraying mechanism 22 is fixedly installed on the surface of the coating spraying mechanism 22, a soft door curtain 24 is fixedly installed on the surface of the dust cover 4, a vertical plate 25 is fixedly installed on the surface of the machine tool plate 3, and a vertical plate 25 is fixedly installed on the surface of the vertical plate 25 A second motor 26 is provided, a threaded rod 27 is fixedly installed at the output end of the second motor 26, a movable frame 28 is threadedly connected to the surface of the threaded rod 27, a fixed plate 29 is fixedly installed on the surface of the movable frame 28, a threaded column 30 is threadedly connected to the interior of the fixed plate 29, a knob 31 is fixedly installed at one end of the threaded column 30, a limit rod 32 is slidably connected to the interior of the fixed plate 29, a clamping plate 33 is fixedly installed at one end of the limit rod 32, a workpiece 34 is placed on the surface of the movable frame 28, the workpiece 34 is clamped by the knob 31, and the second motor 26 is started so that the threaded rod 27 drives the workpiece 34 on the movable frame 28 to enter the dustproof cover 4 for grinding, coating, and drying. The hollow plate 10 is fixedly installed between the grinding area 18, and the dust exhaust pipe 14 is fixedly installed between the installation box 15. The high-pressure nozzle 11 on the hollow plate 10 can prevent the dust and waste generated by the grinding disc 6 during grinding from remaining on the workpiece 34, and can also effectively cool the grinding disc 6. The dust suction pump 12 can ensure that the surface of the workpiece 34 is clean. The movable frame 28 is slidably connected to the dustproof shell cover 4. The movable frame 28 is slidably connected inside the dustproof shell cover 4, so that the movable frame 28 can flexibly adjust its position to ensure that the workpiece 34 is accurately positioned in each process of grinding, coating, and drying, thereby improving the repair efficiency.

[0034] Embodiment 2

[0035] See also Figure 6The second fan 35 is fixedly installed inside the installation box 15, a dust outlet 36 is opened on the surface of the installation box 15, a support plate 37 is fixedly installed on the surface of the installation box 15, and a water tank 38 is placed on the surface of the support plate 37. The dust and waste are sucked into the installation box 15 through the dust exhaust pipe 14. The surface area of ​​the coating waste is flake-shaped and larger than the dust particles, so the first fan 16 below will blow the dust to the top of the installation box 15 and the second fan 35 will blow it into the water tank 38 below the dust outlet 36, and the dust will be discharged by the dust exhaust pipe 14. The principle of strong dust adsorption can effectively prevent secondary pollution. At the same time, the water tank 38 is easy to clean, and the flaky coating waste is not easily blown by the second fan 35 but will fall into the waste box 17 at the bottom of the installation box 15 under the influence of gravity. The air outlet of the second fan 35 is aligned with the dust outlet 36. The material of the water tank 38 is environmentally friendly polyester. The second fan 35 and the dust outlet 36 work together to efficiently discharge dust. The environmentally friendly polyester water tank 38 is relatively light, which is convenient for subsequent staff to replace the water inside it.

[0036] Embodiment 3

[0037] See also Figure 4 The drying area 20 is provided with a vent 39 on the surface of which an exhaust fan 40 is fixedly mounted. A mounting frame 41 is fixedly mounted on the surface of the dust cover 4. A third motor 42 and a hot air pump 43 are fixedly mounted on the surface of the mounting frame 41. A driving wheel 44 is fixedly mounted on the output end of the third motor 42. A duct 45 is fixedly mounted on the output end of the hot air pump 43. A rotating ring 46 is fixedly mounted inside the mounting frame 41. An air guide duct 47 is fixedly mounted inside the rotating ring 46. A ring gear 48 is fixedly mounted on the surface of the air guide duct 47. A shunt pipe 49 is connected to the surface of the air guide duct 47. A venting joint 50 is fixedly mounted on the surface of the shunt pipe 49. The venting joint 50 will evenly distribute the hot air on the workpiece 34 under the rotation of the air duct 47, ensuring uniform drying effect, avoiding local overheating or undrying, and improving the overall quality and durability of the workpiece 34. The air duct 45 is fixedly installed on the mounting frame 41, and the mounting frame 41 is rotatably connected to the air duct 47. The air duct 47 is connected to the mounting frame 41 through a rotating ring 46 to ensure that the air duct 47 remains stable during rotation, avoiding displacement of the air duct 47 due to vibration, and ensuring uniform distribution of hot air. The ring gear 48 is meshedly connected with the driving wheel 44, and the meshing transmission has good stability, so that the driving wheel 44 drives the ring gear 48 to rotate, ensuring smooth rotation of the air duct 47.

[0038] A method for repairing a graphene coating device comprises the following steps:

[0039] S1: First, place the workpiece 34 on the surface of the mobile frame 28, then turn the knob 31 to move the threaded column 30 forward so that the clamping plate 33 clamps the workpiece 34. The limit rod 32 fixed on the surface of the clamping plate 33 can make the clamping plate 33 and the workpiece 34 fit tightly to ensure that they will not loosen during the processing. Then start the second motor 26 to rotate the threaded rod 27 to drive the mobile frame 28 to move into the grinding area 18.

[0040] S2: The aluminum oxide sandpaper 7 installed on the grinding disc 6 can effectively grind the surface of the workpiece 34 to remove coating waste and impurities and improve the coating adhesion. During grinding, the high-pressure nozzle 11 sprays gas to blow away the dust generated during grinding and cool the grinding disc 6 to ensure that the surface is clean and free of residue. The dust and coating waste will be sucked into the installation box 15 by the dust suction pipe 13. Because the coating waste is in sheet form and is not easily blown by the second fan 35, the coating waste will fall into the waste box 17 at the bottom of the installation box 15 due to the influence of gravity.

[0041] S3: Since the dust particles are small, they will be blown into the upper part of the installation box 15 by the wind force generated by the second fan 35, and then the wind force of the first fan 16 will blow the dust into the water tank 38 below the dust outlet 36. The water in the water tank 38 can effectively absorb the dust to prevent secondary pollution.

[0042] S4: Finally, the threaded tube will drive the movable frame 28 to the drying area 20 for drying. The hot air pump 43 in the drying area 20 will start to transport the hot air to the air duct 47 through the air duct 45. The venting joint 50 installed on the diverter pipe 49 connected to the bottom of the air duct 47 will spray the hot air evenly on the surface of the workpiece 34 to ensure that every corner can be fully dried. At the same time, the third motor 42 has been started and will drive the ring gear 48 to rotate the air duct 47 through the driving wheel 44, so as to further optimize the hot air distribution, improve the drying efficiency, ensure the uniform curing of the coating, and prevent the coating from cracking or falling off due to uneven drying.

[0043] Working principle: first, place the workpiece 34 on the surface of the mobile frame 28, then turn the knob 31 to move the threaded column 30 forward so that the clamping plate 33 clamps the workpiece 34, and the limit rod 32 fixed on the surface of the clamping plate 33 can make the clamping plate 33 and the workpiece 34 fit tightly to ensure that they will not loosen during the processing. Then start the second motor 26 to rotate the threaded rod 27 to drive the mobile frame 28 to move to the grinding area 18, and the aluminum oxide sandpaper 7 installed on the grinding disc 6 can effectively grind and remove the surface of the workpiece 34 The coating waste and impurities are improved, and the coating adhesion is improved. The high-pressure nozzle 11 sprays gas while grinding, which can blow away the dust generated during grinding and cool the grinding disc 6 to ensure that the surface is clean and free of residue. The dust and coating waste will be sucked into the installation box 15 by the dust suction pipe 13. Because the coating waste is in the form of flakes and is not easily blown by the second fan 35, the coating waste will fall into the waste box 17 at the bottom of the installation box 15 due to the influence of gravity, and the dust will be blown into the installation box by the wind force generated by the second fan 35 because the particles are small. The dust is then blown into the water tank 38 below the dust outlet 36 by the wind force of the first fan 16. The water in the water tank 38 can effectively absorb the dust to prevent secondary pollution. Then the threaded rod 27 will drive the movable frame 28 to move to the coating area 19. The coating spraying mechanism will move back and forth on the slide bar 21 to spray the coating evenly on the surface of the workpiece 34 through the coating spraying pipe 23 to ensure that the coating thickness is consistent and avoid leakage or accumulation. Finally, the threaded pipe will drive the movable frame 28 to the drying area 20 for drying. The hot air pump 43 in the dry area 20 is started to transport the hot air to the air duct 47 through the air duct 45. The air venting joint 50 installed on the diverter pipe 49 connected to the bottom of the air duct 47 will spray the hot air evenly on the surface of the workpiece 34 to ensure that every corner can be fully dried. At the same time, the third motor 42 has been started to drive the ring gear 48 to rotate the air duct 47 through the driving wheel 44, further optimizing the hot air distribution, improving the drying efficiency, ensuring the uniform curing of the coating, and preventing the coating from cracking or falling off due to uneven drying.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A graphene coating repair device, comprising a base (1), characterized in that: A support column (2) is fixedly mounted on the surface of the base (1); a machine plate (3) is fixedly mounted on one end of the support column (2); a dust cover (4) is fixedly mounted on the surface of the machine plate (3); a first motor (5) is fixedly mounted on the surface of the dust cover (4); a grinding disc (6) is fixedly mounted on the output end of the first motor (5); an aluminum oxide sandpaper (7) is fixedly mounted on the surface of the grinding disc (6); an air pump (8) is fixedly mounted on the surface of the machine plate (3); and the output end of the air pump (8) is supplied with air. The tube (9) is fixedly connected to a hollow plate (10), a high-pressure nozzle (11) is fixedly installed on the surface of the hollow plate (10), a dust suction pump (12) is fixedly installed on the surface of the machine tool plate (3), a dust suction pipe (13) and a dust exhaust pipe (14) are fixedly installed at the input end and the output end of the dust suction pump (12), respectively, an installation box (15) is placed on the surface of the base (1), a first fan (16) is fixedly installed inside the installation box (15), and a waste box (17) is slidably connected inside the installation box (15).

2. The graphene coating repairing device according to claim 1, characterized in that: The dustproof shell (4) is provided with a grinding area (18), a coating area (19) and a drying area (20). A sliding rod (21) is fixedly installed on the surface of the coating area (19). A coating spraying mechanism (22) is slidably connected to the surface of the sliding rod (21). A paint spraying pipe (23) is fixedly installed on the surface of the coating spraying mechanism (22). A soft door curtain (24) is fixedly installed on the surface of the dustproof shell (4). A vertical plate (25) is fixedly installed on the surface of the machine tool plate (3). A second motor (26) is fixedly installed on the surface of the vertical plate (25). A threaded rod (27) is fixedly mounted on the output end of the second motor (26); a movable frame (28) is threadedly connected to the surface of the threaded rod (27); a fixed plate (29) is fixedly mounted on the surface of the movable frame (28); a threaded column (30) is threadedly connected to the interior of the fixed plate (29); a knob (31) is fixedly mounted on one end of the threaded column (30); a limit rod (32) is slidably connected to the interior of the fixed plate (29); a clamping plate (33) is fixedly mounted on one end of the limit rod (32); and a processing part (34) is placed on the surface of the movable frame (28).

3. The graphene coating repairing device according to claim 1, characterized in that: The hollow plate (10) is fixedly mounted on the grinding area (18), and the dust exhaust pipe (14) is fixedly mounted on the installation box (15).

4. The graphene coating repairing device according to claim 1, characterized in that: The movable frame (28) is slidably connected to the dustproof housing cover (4).

5. The graphene coating repairing device and method according to claim 1, characterized in that: A second fan (35) is fixedly installed inside the installation box (15), a dust exhaust port (36) is opened on the surface of the installation box (15), a support plate (37) is fixedly installed on the surface of the installation box (15), and a water tank (38) is placed on the surface of the support plate (37).

6. The graphene coating repairing device according to claim 5, characterized in that: The air outlet of the second fan (35) is aligned with the dust exhaust port (36), and the material of the water tank (38) is environmentally friendly polyester.

7. The graphene coating repairing device according to claim 1, characterized in that: A vent (39) is provided on the surface of the drying area (20), an exhaust fan (40) is fixedly mounted on the surface of the vent (39), a mounting frame (41) is fixedly mounted on the surface of the dust cover (4), a third motor (42) and a hot air pump (43) are fixedly mounted on the surface of the mounting frame (41), a driving wheel (44) is fixedly mounted on the output end of the third motor (42), an air duct (45) is fixedly mounted on the output end of the hot air pump (43), a rotating ring (46) is fixedly mounted inside the mounting frame (41), an air guide duct (47) is fixedly mounted inside the rotating ring (46), a ring gear (48) is fixedly mounted on the surface of the air guide duct (47), a shunt duct (49) is connected to the surface of the air guide duct (47), and a venting joint (50) is fixedly mounted on the surface of the shunt duct (49).

8. The graphene coating repairing device according to claim 8, characterized in that: The air duct (45) is fixedly mounted on the mounting frame (41), and the mounting frame (41) is rotatably connected to the air guide duct (47).

9. The graphene coating repairing device according to claim 8, characterized in that: The ring gear (48) is meshingly connected with the driving wheel (44).

10. A method for repairing a graphene coating according to any one of claims 1 to 9, characterized in that: The steps include: S1: First, place the workpiece (34) on the surface of the movable frame (28), then turn the knob (31) to move the threaded column (30) forward so that the clamping plate (33) clamps the workpiece (34). The limit rod (32) fixed on the surface of the clamping plate (33) can make the clamping plate (33) and the workpiece (34) fit tightly together to ensure that they will not loosen during the processing. Then, start the second motor (26) to rotate the threaded rod (27) to drive the movable frame (28) to move into the grinding area (18). S2: The aluminum oxide sandpaper (7) installed on the grinding disc (6) can effectively grind the surface of the workpiece (34) to remove coating waste and impurities, thereby improving the coating adhesion. During grinding, the high-pressure nozzle (11) sprays gas to blow away the dust generated during grinding, and cools the grinding disc (6) to ensure that the surface is clean and free of residue. The dust and coating waste will be sucked into the installation box (15) by the dust suction pipe (13). Because the coating waste is in the form of flakes and is not easily blown by the second fan (35), the coating waste will fall into the waste box 17 at the bottom of the installation box (15) due to the influence of gravity. S3: Since the dust particles are relatively small, they will be blown into the upper part of the installation box (15) by the wind force generated by the second fan (35), and then the dust will be blown into the water tank (38) below the dust outlet (36) by the wind force of the first fan (16). The water in the water tank (38) can effectively absorb the dust to prevent secondary pollution. S4: Finally, the threaded tube drives the movable frame (28) to the drying area (20) for drying. The hot air pump (43) in the drying area (20) is started to transport the hot air through the air duct (45) to the air guide pipe (47). The air release joint (50) installed on the diverter pipe (49) connected to the bottom of the air guide pipe (47) will spray the hot air evenly on the surface of the workpiece (34) to ensure that every corner can be fully dried. At the same time, the third motor (42) has been started to drive the ring gear (48) through the driving wheel (44) to rotate the air guide pipe (47), further optimizing the hot air distribution, improving the drying efficiency, ensuring that the coating is evenly cured, and preventing the coating from cracking or falling off due to uneven drying.

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